ESLint v4.0.0 released

We just pushed ESLint v4.0.0, which is a major release upgrade of ESLint. This release adds some new features and fixes several bugs found in the previous release. This release also has some breaking changes, so please read the following closely.

Highlights

There are several breaking changes in 4.0.0. We’ve created a migration guide to explain the breaking changes and describe how to upgrade.